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  1. robm

    qm remote-migrate hung up on fstrim

    fstrim manually takes a few seconds at most (SSD). Storage is ZFS. Each cluster has standalone VMs, both cluster are running latest Proxmox 7.4 with all packages updated. Same CPU in both servers (e3-1230).
  2. robm

    qm remote-migrate hung up on fstrim

    Tasklog for the migration attached
  3. robm

    qm remote-migrate hung up on fstrim

    Also, just did another test with a test VM, and the same sort of thing happened. It stopped at the fstrim, but this time it locked up the VM at 100% CPU (1 core), timed out after 10 minutes, and the VM was unresponsive on console. Had top stop/start it, at which point it was running on the new...
  4. robm

    qm remote-migrate hung up on fstrim

    Sure, I PM'ed you the full journal entries. Thanks.
  5. robm

    qm remote-migrate hung up on fstrim

    Old: Nov 09 09:07:39 swtrading-pve qm[1298464]: <root@pam> starting task UPID:swtrading-pve:0013D041:00755213:654CF5BB:qmigrate:123:root@pam: Nov 09 09:39:28 swtrading-pve qm[1298497]: migration problems Nov 09 09:39:28 swtrading-pve qm[1298504]: migration aborted Nov 09 09:39:28 swtrading-pve...
  6. robm

    qm remote-migrate hung up on fstrim

    Latest 7.4 proxmox, was moving a VM from one cluster to another using the "qm remote-migrate" command. First VM moved fine, second one got hung up: 2023-11-09 09:29:28 stopping NBD storage migration server on target. tunnel: -> sending command "nbdstop" to remote tunnel: <- got reply tunnel: ->...
  7. robm

    PVE7 / PBS2 - Backup Timeout (qmp command 'cont' failed - got timeout)

    We're seeing the timeouts too with a local PBS backup server for many standalone Proxmox servers (no NFS). We think it's because when the backups run on the PBS, the server can be slow to respond (GUI sometimes takes 15-20 seconds to load a new page), and this is tripping that 3 second timeout...
  8. robm

    VM live migration using lvm-thin with discard results in high I/O

    Thank you for looking into it. I wonder if there is a way to set an "ionice" setting on the disk zeroing to lessen its I/O impact when zeroing the disk. Since it's a live migration, a few extra minutes would not be an issue on the initial zeroing...
  9. robm

    VM live migration using lvm-thin with discard results in high I/O

    Sure, here are the task logs for the same VM being migrated 3 different ways. Also attached is the image of I/O load for these 3 tests (discard on first, discard off second, VM offline migration 3rd). The live migration with discard on really impacts other VMS performance during the zeroing of...
  10. robm

    VM live migration using lvm-thin with discard results in high I/O

    Sure. Task log with discard on: Migrate with discard enabled: ----------------------------- Proxmox Virtual Environment 7.0-11 Logs 2021-10-09 22:14:05 use dedicated network address for sending migration traffic (10.10.23.81) 2021-10-09 22:14:06 starting migration of VM 214 to node 'vps16'...
  11. robm

    VM live migration using lvm-thin with discard results in high I/O

    When doing a live VM migration (latest proxmox enterprise 7) from one server to another where both servers use local disks with lvm-thin (ext4 hardware SSD RAID-10), if the VM hard disk has "Discard" enabled, we find that the migration hammers the I/O of the target node until the first copy...
  12. robm

    VM clone high I/O with hardware RAID-10 SSD drives

    When we perform an offline VM clone, we see a very high I/O for 1-2 minutes, which causes other VMs to slow down considerably. Running the latest Proxmox 7. RAID-10 is using Intel VROC. SSDs are: Crucial/Micron Micron_1100_MTFDDAK2T0TBN Intel(R) Xeon(R) CPU E5-2680 v4 dual CPUs 512 GB RAM ext4...
  13. robm

    [SOLVED] Installing kernelcare in container issue with insmod

    Ah ok, thanks for the explanation. We'll put kernelcare on the host, and we should be good then. :)
  14. robm

    [SOLVED] Installing kernelcare in container issue with insmod

    I thought with LXC, since we can install any OS, that we have to manage each LXC's kernel with updates, etc... We are trying to apply kernelcare to each LXC so we do not have to reboot the container each time a new kernel is released for the OS of the container. For example, if the container is...
  15. robm

    [SOLVED] Installing kernelcare in container issue with insmod

    Using centOS 7 LXC as "unprivileged containers" and trying to install kernelcare for rebootless kernel updates, and running into this error: insmod: ERROR: could not insert module /var/cache/kcare/modules/none-abcd/kcare.ko: Operation not permitted Unable to load kmod...
  16. robm

    sar output shows 100% user cpu

    A reboot of the container and sar has returned to normal. Very odd, but all seems fine in our CTs now.
  17. robm

    vzdump exclude-path pattern match or anchored to start?

    When using exclude-path in /etc/vzdump.conf, does an entry such as: "/tmp/?*" only match /tmp/abc, or would it also match /home/xyz/tmp/abc? If we want to match directories like "/home/abc/www/var/report" and "/home/def/www/var/report" would this be the right syntax: "?*/var/report/?*" Thanks...
  18. robm

    sar output shows 100% user cpu

    Following up on this, "top" shows normal loads as expected. "htop" shows idle processes pegging the CPU, so it seems to be behaving erratically like the sar output. Graphs in the web gui all look correct. Hopefully there is a way to adjust sar to work in an LXC container using a stock centOS 7...
  19. robm

    sar output shows 100% user cpu

    We have an unprivileged LXC centOS 7 container set up on the latest Proxmox. After installing sysstat, sar output shows user cpu at 100%, with cpu being 0% idle, even though there is little to no load on the container or the node. Anyone ever run into this before? Any workaround to get accurate...

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